export default {
	"title": '微机原理及接口技术-在线作业3',
    "testId": '58831',
	"praxiseList": [
		{
			"id": 77512,
			"title": "设8255芯片的端口基地址是60H，寻址控制寄存器的命令是  ()  。",
			"options": "[\"OUT  60H，AL\",\"OUT  66H，AL\",\"OUT  61H，AL\",\"OUT  62H，AL\"]",
			"answer": "2",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77513,
			"title": "设8253芯片的端口基地址是60H，寻址控制寄存器的命令是  () 。",
			"options": "[\"OUT  60H，AL\",\"OUT  61H，AL\",\"OUT  62H，AL\",\"OUT  63H，AL\"]",
			"answer": "4",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77514,
			"title": "每片8259必须分配  (  )  端口地址。",
			"options": "[\"2个\",\"3个\",\"4个\",\"1个\"]",
			"answer": "1",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77515,
			"title": "掩膜型ROM可简记为 ( )  。",
			"options": "[\"PROM\",\"MROM\",\"EPROM\",\"EEPROM\"]",
			"answer": "2",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77516,
			"title": "指令译码器用  （ ） 表示。",
			"options": "[\"IR\",\"DR\",\"ID\",\"AR\"]",
			"answer": "3",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77517,
			"title": "总线按在微机结构中所处的位置不同，可以分为  (  ) 。",
			"options": "[\"片内总线、片外总线、系统总线、外部总线\",\"片内总线、片外总线、内部总线、外部总线\",\"片内总线、芯片总线、系统总线、外部总线\",\"片内总线、芯片总线、内部总线、外部总线\"]",
			"answer": "3",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77518,
			"title": "总线上每秒传输的最大字节量称为  (  ) 。",
			"options": "[\"总线位宽\",\"总线字宽\",\"总线带宽\",\"数据位数\"]",
			"answer": "3",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77519,
			"title": "并行通信适用于  （）的数据传送。",
			"options": "[\"不同类型\",\"同类型\",\"近距离\",\"远距离\"]",
			"answer": "3",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77520,
			"title": "对于8255芯片的描述正确的是 ()  。",
			"options": "[\"A口只能输入，B口只能输出\",\"C口高4位只能输入，低4位只能输出\",\"C口高4位、低4位不能同时输入输出\",\"C口既可以输入，也可以输出\"]",
			"answer": "4",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77521,
			"title": "存储器芯片位数不足时，需用  ( ) 。",
			"options": "[\"字扩展\",\"位扩展\",\"字位扩展\",\"以上均可\"]",
			"answer": "2",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77522,
			"title": "可重写的  ( )的存储器。",
			"options": "[\"非易失性\",\"易失性\",\"只读性\",\"磁介质性\"]",
			"answer": "1",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77523,
			"title": "可编程ROM可简记为  (  )  。",
			"options": "[\"PROM\",\"MROM\",\"EPROM\",\"EEPROM\"]",
			"answer": "1",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77524,
			"title": "以下说法中， （ ）是错误的。",
			"options": "[\"逻辑段允许在整个存储空间内浮动。\",\"一个程序可以有代码段、数据段和堆栈段。\",\"段与段之间可以连续，也可以重叠。\",\"段与段之间可以连续，不可以重叠。\"]",
			"answer": "4",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77525,
			"title": "以下叙述中，不正确的是 （ ） 。",
			"options": "[\"最大模式系统中含2个CPU。\",\"最大模式系统中含2个以上的CPU。\",\"最小模式系统中也称单模式系统。\",\"最小模式系统中只含1个CPU。\"]",
			"answer": "1",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77526,
			"title": "以下叙述中，不正确的是  （ ） 。",
			"options": "[\"一个总线周期含4个T状态。\",\"一个时钟周期也称为一个T状态。\",\"一个指令周期由4个总线周期组成。\",\"执行一条指令所需时间为一个指令周期。\"]",
			"answer": "3",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77527,
			"title": "串行通信适用于微机间  （）的数据传送。",
			"options": "[\"不同类型\",\"同类型\",\"近距离\",\"远距离\"]",
			"answer": "4",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77528,
			"title": "串行通信有 ()  种基本工作方式。",
			"options": "[\"2\",\"3\",\"4\",\"1\"]",
			"answer": "2",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77529,
			"title": "两片8259芯片级连后，可以管理  ( ) 级中断。",
			"options": "[\"15\",\"16\",\"64\",\"32\"]",
			"answer": "1",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77530,
			"title": "USB是一种  (  ) 。",
			"options": "[\"通用的串行总线接口\",\"通用的并行总线接口\",\"新型的微机内部总线\",\"新外设标准插头\"]",
			"answer": "1",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77531,
			"title": "SRAM是一种  ( )  。",
			"options": "[\"动态RAM\",\"静态RAM\",\"动态ROM\",\"静态ROM\"]",
			"answer": "2",
			"type": "single",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77532,
			"title": "按接口类型分，鼠标可分为___和无线鼠标这几种。",
			"options": "[\"ISA\",\"PS–2\",\"USB\",\"串行口\",\"并行口\"]",
			"answer": "[2,3,4]",
			"type": "muti",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 77533,
			"title": "投影机按照结构原理分为___几类",
			"options": "[\"CRT投影机\",\"LCD投影机\",\"DLP投影机\",\"彩色投影机\",\"平铺式投影机\"]",
			"answer": "[1,2,3]",
			"type": "muti",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 77534,
			"title": "执行时可能改变IP值的指令有（ )。",
			"options": "[\"调用及返回指令\",\"中断及返回指令\",\"转移指令\",\"串操作指令\"]",
			"answer": "[1,2,3]",
			"type": "muti",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 77535,
			"title": "微机硬件系统一般由以下哪些部分组成（)",
			"options": "[\"运算器\",\"存储器\",\"控制器\",\"输入设备\",\"输出设备\"]",
			"answer": "[1,2,3,4,5]",
			"type": "muti",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 77536,
			"title": "常用的输入设备有（ )",
			"options": "[\"键盘\",\"鼠标\",\"触摸屏\",\"显示器\"]",
			"answer": "[1,2,3]",
			"type": "muti",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 77537,
			"title": "对计算机信息安全造成危害的困素主要有___",
			"options": "[\"管理上操作失误\",\"操作人员缺乏安全意识\",\"黑客的攻击\",\"计算机病毒的危害\",\"操作系统或应用程序的漏洞\"]",
			"answer": "[1,2,3,4,5]",
			"type": "muti",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 77538,
			"title": "对网络速度起主要决定作用的是___",
			"options": "[\"服务器\",\"工作站\",\"网络接入设备\",\"通信介质\",\"网络互连设备\"]",
			"answer": "[1,2,3,4,5]",
			"type": "muti",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 77539,
			"title": "宏病毒主要是___中的病毒。",
			"options": "[\"Word\",\"Excel\",\"病毒预警软件\",\"盗版游戏软件\",\"商品化会计应用软件\"]",
			"answer": "[1,2]",
			"type": "muti",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 77540,
			"title": "声频卡的主要功能是___。",
			"options": "[\"数字音频、模拟信号与数字信号的转换、压缩声音信号\",\"音乐合成、FM合成和波形表合成\",\"MIDI与音效MIDI、乐器数字接口\",\"电视信号采集\",\"声音信号的存贮\"]",
			"answer": "[1,2,3]",
			"type": "muti",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 77541,
			"title": "在CPU与外设之间设计接口电路的目的主要有（ )。",
			"options": "[\"解决驱动能力问题\",\"控制数据传送速度\",\"完成数据形式转换\",\"负责CPU与外设的联络\"]",
			"answer": "[1,2,3,4]",
			"type": "muti",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": "[]"
		},
		{
			"id": 77542,
			"title": "微处理器又称为CPU ，是微型机的核心部件。",
			"options": "",
			"answer": "1",
			"type": "charge",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77543,
			"title": "带符号的二进制数称为真值；如果把其符号位也数字化，称为原码。",
			"options": "",
			"answer": "1",
			"type": "charge",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77544,
			"title": "已知一组二进制数为-1011B，其反码为 10100B ，其补码为   10101B   。",
			"options": "",
			"answer": "1",
			"type": "charge",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77545,
			"title": "子程序需要保护寄存器,包括保护传递入口参数和出口参数的通用寄存器。",
			"options": "",
			"answer": "-1",
			"type": "charge",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77546,
			"title": "子程序采用堆栈传递参数时,只能在主程序中修改ESP 方可保持堆栈的平衡。",
			"options": "",
			"answer": "-1",
			"type": "charge",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77547,
			"title": "在软件中只使用一次的功能编写成子程序完全没有必要。",
			"options": "",
			"answer": "-1",
			"type": "charge",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77548,
			"title": "在执行CALL 指令时,硬件自动将断点地址压入堆栈中。",
			"options": "",
			"answer": "1",
			"type": "charge",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77549,
			"title": "在LOOP 指令构成的循环结构中,允许修改ECX 的值。",
			"options": "",
			"answer": "1",
			"type": "charge",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77550,
			"title": "因为条件转移指令Jcc 要利用标志作为条件,所以也影响标志。",
			"options": "",
			"answer": "-1",
			"type": "charge",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		},
		{
			"id": 77551,
			"title": "利用寄存器在主子程序间传递参数,其实质就是利用全局变量来传递参数。",
			"options": "",
			"answer": "1",
			"type": "charge",
			"hard": 1,
			"explain": "无",
			"regtime": "2021-03-01 14:26:21",
			"last_time": null,
			"iscorrect": 0,
			"user_answer": ""
		}
	]
}